Advice on on the way home guarantee? After a few car robberies where on earth the keys own been...

After a few car robberies where on earth the keys own been obtain by gaining entry to the house, i am worrying as i enjoy a car thieve would love. I'll give an overview of what i own now, deeply i just want to make it complicated to force entry.
I have a veranda door on the porch that deadlocks then the chief front door with a commonplace Yale latch/lock and a 5 level lock also. House is alarmed next to PIR's in fundamental areas. Back door which is in kitchen have a five lever lock and a small latch at bottom of door, this door has 6 chalice panes contained by, whether these can smash easily, i don't know. I enjoy CCTV ( cheap system - quality not great) looking down the side of the house, this is how you grasp to back door. I also hold 4 PIR security lights around the house.

Can i increase anywhere. My main verbs is that back door?
Answers:    Fix lock to BS 6321 standard.
Speak to local locksmith for guidance
The best home security i bought after anyone burgled was a dog.Burglers run at the nouns of a dog,simply because they dont know the size or ferocity of your dog and ingeneral there not prepared to find out.Since i bourght my dog whitch is a colly,i've have no problems from burgulars or trick-a-treaters